| Business | Phone |
| American Fire Systems 6125 W Sam Houston Pkwy N, Houston 77041 | (713) 466-9898 |
| Chero-Key Piping Co 10333 Harwin Dr, Houston 77036 | (713) 774-6371 |
| Custom Fire Protection 12345 Jones Rd # 125, Houston 77070 | (281) 807-4165 |
| Eagle Automatic Fire Sprinkler 10807 Warwana Rd, Houston 77043 | (713) 939-0708 |
| Fire Protection Design 11720 Taylorcrest Rd, Houston 77024 | (713) 973-9724 |
| Firecheck Of America Houston 77070 | (281) 890-3473 |
| H G Fire Systems Lp 15102 Sommermeyer St 100, Houston 77041 | (713) 957-5171 |
| Intercontinental Fire Control 5714 Martha Ln, Houston 77032 | (281) 442-8884 |
| International Fire Protection 5201 Mitchelldale St B6, Houston 77092 | (713) 683-6433 |